CN107210151A - Contact mechanism and use its switch - Google Patents
Contact mechanism and use its switch Download PDFInfo
- Publication number
- CN107210151A CN107210151A CN201580076171.5A CN201580076171A CN107210151A CN 107210151 A CN107210151 A CN 107210151A CN 201580076171 A CN201580076171 A CN 201580076171A CN 107210151 A CN107210151 A CN 107210151A
- Authority
- CN
- China
- Prior art keywords
- contact
- mentioned
- switch
- electric arc
- moving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010891 electric arc Methods 0.000 claims abstract description 48
- 238000012546 transfer Methods 0.000 description 51
- 239000011159 matrix material Substances 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 18
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 238000000926 separation method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000007373 indentation Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Chemical group 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
- H01H1/10—Laminated contacts with divided contact surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
- H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
- H01H13/186—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift wherein the pushbutton is rectilinearly actuated by a lever pivoting on the housing of the switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/182—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/546—Contact arrangements for contactors having bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
- H01H9/063—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner enclosing a reversing switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Push-Button Switches (AREA)
- Contacts (AREA)
Abstract
The problem of the present invention is not increase there is provided a kind of resistance, the contact mechanism of contact endurance length.Therefore, contact mechanism is made up of movable contact for switch (37a) of the switch with fixed contact (35a), corresponding thereto, the permanent magnet for making the electric arc produced between above-mentioned fixed contact and above-mentioned moving contact be extended to defined direction.Particularly, make electric arc (A1) elongation that the contact surface region (35d, 37b) from above-mentioned switch fixed contact (35a) and above-mentioned movable contact for switch (37a) contact is produced using the magnetic force (B) of above-mentioned permanent magnet, make above-mentioned electric arc (A1) mobile to above-mentioned switch fixed contact (35a) and the discontiguous non-planar contact surfaces region (35e, 37c) of above-mentioned movable contact for switch (37a).
Description
Technical field
It is more particularly to bad caused by the generation of electric arc for solving to make during contact separation the present invention relates to contact mechanism
Contact mechanism.
Background technology
At present, as contact mechanism, for example, there is the mechanism used in following apparatus, i.e. " a kind of power-converting device, its
It is characterised by possessing：By the output transform of dc source into exchange and to the inverter circuit portion of load supply, possess and be inserted in
The contact portion of circuit between dc source and inverter circuit portion and the direct current for interdicting the power supply to inverter circuit portion
Breaker, the dc circuit breaker is made up of switch and permanent magnet, and the switch contacts contact portion according to the operation of operating portion
Or separation；The permanent magnet is disposed in the outside of switch main body in the way of the both sides positioned at contact portion, with relative to tactile
The direction generally perpendicular direction formation magnetic field that point portion is separate " (with reference to patent document 1).
In the contact mechanism, as shown in Figure 10, by operating reversion handle 14, be arranged at movable contact 18 can
Movable contact 17 is contacted with fixed contact 16, separated.Moreover, being carried out in the contact mechanism, by configuring permanent magnet
12, the electric arc produced when making moving contact 17 be left from fixed contact extends to desired direction, electric arc is disappeared.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2005-228526 publications
Invent problem to be solved
But, in above-mentioned contact mechanism, in the case where above-mentioned moving contact 17 is from the separation of above-mentioned fixed contact 16, from
The electric arc that in contact surface, initial separation specific surface region is produced, has electric arc to continue in its surface region.Therefore,
Only specific surface region is burnt out by electric arc, wildness, therefore, when specific surface region contacts with each other, resistance increase,
In the presence of not only easily heating, and the short the problem of point of contact endurance.
The content of the invention
The contact mechanism of the present invention is in view of the problem, its problem is not increase there is provided a kind of resistance, and contact endurance is long
Contact mechanism.
Technical scheme for solving problem
In view of above-mentioned problem, moving contact by fixed contact, corresponding thereto of contact mechanism of the invention, by the fixation
The permanent magnet that the electric arc produced between contact and the moving contact extends to defined direction is constituted, wherein, by described
The magnetic force of permanent magnet makes the electric arc produced from fixed contact contact with movable contact contacts surface region
Elongation, makes the electric arc be moved to the fixed contact and the discontiguous non-planar contact surfaces region of the moving contact.
Invention effect
According to the present invention, because the electric arc produced is moved to non-planar contact surfaces region, fixed contact and moving contact
Contact surface region be difficult to be burnt out by electric arc, without wildness.Consequently, because resistance does not increase, even if so described connect
Tactile surface region contacts with each other, and is not easy to heating, contact endurance extension.
As embodiments of the present invention, the moving contact can also be arranged on the mobile contact piece of rotation.
According to present embodiment, by the rotational motion of mobile contact piece, fixed contact is easily clearly separated and movable
The contact surface region of contact and both discontiguous non-planar contact surfaces regions.Therefore, fixed contact and moving contact
Contact surface region is difficult further to be burnt out by electric arc, without wildness.As a result, increasing resistance, even if described
Contact surface region contacts with each other, and is not easy to further generate heat, contact endurance extension.
It is used as other embodiments of the present invention, or, made by the magnetic force of the permanent magnet from the fixation
The electric arc that the contact surface region of contact and the moving contact is produced is to the rotation positioned at the mobile contact piece
The non-planar contact surfaces region elongation of fulcrum side.
According to present embodiment, the electric arc produced from contact surface region is extended by the magnetic force of permanent magnet, Xiang Fei
Surface region movement is contacted, therefore, it is possible to avoid the deterioration of the contact surface region, contact endurance further extends.
It is used as other embodiments of the present invention, or, the moving contact is disposed along and the fixation
On the mobile contact piece that the relative direction of the surface crosswise of contact is moved in parallel.
According to present embodiment, applicable scope broadens, and the free degree of design broadens.
It is used as other embodiments of the present invention, or, in the relative of the fixed contact and the moving contact
The opposite face of either one of face, is formed with when contact is closed to make from the contact surface region to the noncontact table
The contact spacing in face region is from the inclined taper surface of mode broadened.
In addition, the taper surface of the present invention can be the taper surface being made up of plane, alternatively, it is also possible to being convex by section
The taper surface that the flexure plane of shape or the flexure plane of section concave shape are constituted.
According to present embodiment, electric arc is easily moved, even if contact surface is burned because of electric arc, non-planar contact surfaces region
Gradually it is burned, contact resistance increase, therefore, the contact resistance of contact surface region are difficult increase, so contact endurance extends.
The switch of the present invention can also possess the contact mechanism.
According to the present invention, acquisition is difficult heating, and the switch of long lifespan.
The trigger switch of the present invention can also possess described contact mechanism.
According to the present invention, heating, and the effect of the trigger switch of long lifespan are difficult with acquisition.
Brief description of the drawings
Fig. 1 is the stereogram for representing to apply the trigger switch of the embodiment of the contact mechanism of the present invention；
Fig. 2 is Fig. 1 exploded perspective view；
Fig. 3 is the exploded perspective view from the angle different from Fig. 2；
Fig. 4 be represent Fig. 1 trigger switch action before Inner Constitution part front elevation；
Fig. 5 is Fig. 4 partial enlargement front elevation；
Fig. 6 is the profilograph of Fig. 1 from rear side；
Fig. 7 be represent Fig. 1 trigger switch action after Inner Constitution part front elevation；
Fig. 8 is Fig. 7 partial enlargement front elevation；
Fig. 9 is to represent the outline figure that the contact of the trigger switch shown in Fig. 1 is closed；
Figure 10 is to represent the outline figure after the trigger switch separation shown in Fig. 1；
Figure 11 is the enlarged partial isometric view for the other embodiment for representing the contact mechanism of the present invention；
When electric arc when Figure 12 is the contact closing for the embodiment 1 and comparative example 1 for representing the contact mechanism of the present invention continues
Between chart；
Figure 13 is the photo of the fixed contact for the embodiment 2 for representing the contact mechanism of the present invention；
Figure 14 is Figure 13 partial enlargement photo；
Figure 15 is the photo of the moving contact for the embodiment 2 for representing the contact mechanism of the present invention；
Figure 16 is Figure 15 partial enlargement photo；
Figure 17 is the photo for the fixed contact for representing comparative example 2；
Figure 18 is Figure 17 partial enlargement photo；
Figure 19 is the photo for the moving contact for representing comparative example 2；
Figure 20 is Figure 19 partial enlargement photo.
Embodiment
As shown in Fig. 1~Figure 11 accompanying drawing, the embodiment of contact mechanism of the invention applies to the feelings of trigger switch
Condition.
That is, as shown in Fig. 2 the trigger switch of first embodiment is formed by the first lid 11 and the second lid 15 are combined
The Inner Constitution parts such as matrix 20, plunger 40, printed base plate 50 are assembled with housing 10, and are assembled with trigger 60 and switching
Bar 70.
In addition, in the following description, in terms of composition shown in the drawings is illustrated, using representing " on ", " under ", " left side ",
" right side " etc. represents the term in direction and other terms comprising these terms, but is used for using the purpose of these terms by attached
Figure makes the understanding of embodiment become easy.Therefore, when these terms are not limited to represent actual use embodiments of the present invention
Direction, should not be by the technical scope of the invention described in these term limited interpretation claims.
It is used to support the semicircular of changer lever 70 described later as shown in Fig. 2 the side of the first lid 11 in the above is provided with
Chimeric recess 12.In addition, above-mentioned first lid 11 is provided with the lateral surface of the underface positioned at above-mentioned chimeric recess 12 is used for branch
Hold the semicircle rib 13 of the operating shaft 61 of above-mentioned trigger 60, and be equipped with side prerotation vane 14, with it is above-mentioned chimeric recessed
Portion 12 is abutted.
As shown in figure 3, the second lid 15 has the front shape that can be docked with above-mentioned first lid 11, side in the above is set
There is the semicircular chimeric recess 16 for supporting changer lever 70 described later.In addition, above-mentioned second lid 15 is positioned at above-mentioned chimeric
The lateral surface of the underface of recess 16 is provided with the semicircle rib 17 for the operating shaft 61 for being used to support above-mentioned trigger 60.
In addition, in the composition surface of above-mentioned second lid 15, the operating shaft 61 and changer lever 70 of installing trigger 60 described later
Part beyond composition surface it is integrated with above-mentioned first lid 11 by ultrasonic bonding or bonding agent.
As shown in Fig. 2 above-mentioned matrix 20 has the shape for cutting the side of side from box shape, one in its top
Side is provided with the positioning recess 21 for being used for positioning changer lever 70.In addition, opposite side of the above-mentioned matrix 20 in above-mentioned top is provided with saw
The click feel of dentation jog 22, also, be provided with above-mentioned positioning with recess 21 and above-mentioned click feel between jog 22
Setting recess 23 for setting the transfer terminal 31 of shared transfer terminal 30 and first described later.Moreover, above-mentioned matrix 20 exists
Its following bottom surface is disposed with location indentations 24 for positioning moving contact spring 38a described later and aftermentioned for positioning
Moving contact spring 38b location indentations 25.
In addition, as shown in Fig. 2 above-mentioned matrix 20 is so that the shared He of transfer terminal 30 bent to above-mentioned setting with recess 23
First transfer terminal 31 is set as conplane mode.In addition, above-mentioned shared transfer terminal 30 is via transfer moving contact
Spring 34 is rotatably supported in the transfer mobile contact piece 33 for inserting support holes 30a.
Moreover, as shown in figure 3, above-mentioned matrix 20 is assembled with its embedded hole 26 possesses the second of transfer fixed contact 32a
Transfer terminal 32.Therefore, the transfer moving contact 33a located at the one end of above-mentioned transfer mobile contact piece 33 is fixed on riveting
The accessible separation of the transfer fixed contact 32a of above-mentioned second transfer terminal 32 and it is opposed.
And then, above-mentioned matrix 20 has permanent magnetic of the insertion of embedded hole 27 with step of step in its following rear side
Iron 28.Step is set to be to prevent from being mistakenly inserted in above-mentioned embedded hole 27 and permanent magnet 28.
In addition, as described in Figure 2, above-mentioned matrix 20 its it is following by fixed contact terminals 35 and moving contact terminal 36 from side
Side is respectively pressed into fixation.Particularly, as shown in fig. 6, in above-mentioned fixed contact terminals 35, riveting is fixed with a pair of switches and uses, leads to
The electric horizontal end 35c with fixed contact 35a, 35b, in above-mentioned matrix 20, above-mentioned matrix 20 is not embedded in by cantilever support.
Therefore, produce electric arc between fixed contact 35a and movable contact for switch 37a even in switch, be not easy to from
The resin for forming matrix 20 produces micropowder and dispersed into surrounding environmental gases.As a result, the not only insulated electro of inner space
Resistance will not be reduced, and will not adhere to the micropowder of resin in contact surface, therefore, switch fixed contact 35a proximity switches
Electric arc is not likely to produce during with moving contact 37a, there is contact endurance extension.
On the other hand, above-mentioned moving contact terminal 36 is in its upper end and provided with support holes 36a and support holes 36b.And then,
Switch mobile contact piece 37 is inserted in above-mentioned support holes 36a, and is rotatably supported via moving contact spring 38a.It is another
Aspect, inserts energization mobile contact piece 39, and rotatably support via moving contact spring 38b in above-mentioned support holes 36b
(Fig. 5).Therefore, the switch set respectively with mobile contact piece 37,39 with, energization in above-mentioned switch is with, energization moving contact
37a, 39a with located at above-mentioned fixed contact terminals 35 switch use, energization fixed contact 35a, 35b respectively can contact separate and
It is opposed.
As shown in Fig. 2 above-mentioned plunger 40 has can slide mobile outer shape in above-mentioned matrix 20, and possesses insertion
The through hole 41 of side, and it is disposed with a pair of guide grooves 42a, 42b in one lateral surface.As being constructed as below, i.e. to
Above-mentioned through hole 41 inserts back-moving spring 43, and can be pressed into fixed sliding part respectively in a pair above-mentioned guide groove 42a, 42b
44、45.Therefore, above-mentioned plunger 40 can be accommodated in above-mentioned matrix 20 with reciprocating via back-moving spring 43 along axis direction.
In addition, as shown in figure 3, above-mentioned plunger 40 is in its bottom surface and provided with operating portion 46, the operating portion 47 for possessing taper surface.
As shown in Fig. 2 above-mentioned printed base plate 50 has the front shape for the opening portion that can cover above-mentioned matrix 20, in it
Swept resistance body (not shown) is printed with to face, and the electronic components such as resistance are installed, and socket is installed in its bottom
51.Moreover, the matrix 20 for being accommodated with above-mentioned plunger 40 is assembled in by the way that above-mentioned printed base plate 50 is embedded in, and by above-mentioned share
Turn the electrical connection such as terminal 30, first transfer terminal 31, can be integrated with above-mentioned matrix 20.Moreover, by making above-mentioned plunger 40
Movement is slided, swept resistance body of a pair of the above-mentioned sliding parts 44,45 of above-mentioned plunger 40 along above-mentioned printed base plate 50 is installed on
Slide, make resistance change.
As shown in Fig. 2 above-mentioned trigger 60 possesses the operating shaft 61 prominent to side, make insertion above-mentioned using helical ring 63
The one end anti-avulsion of the corrugated cylinder 62 of operating shaft 61.In addition, above-mentioned trigger 60 is by making from above-mentioned corrugated cylinder 62
The leading section of prominent aforesaid operations axle 61 is slidably fastened from the connecting hole 40a (Fig. 3) of above-mentioned plunger 40, can be with above-mentioned plunger
40 integrations.
In addition, the corrugated cylinder 62 of insert aforesaid operations axle 61 is by the way that its other end is covered with above-mentioned first, second
11st, 15 semicircle rib 13,17 engages, and as water proof structure.
As shown in Fig. 2 changer lever 70 assembles steel ball 72 in one end via helical spring 71, so that steel ball 72 is outward
Force, also, as shown in figure 3, the rotation of section gate is assembled with via helical spring (not shown) below one side
Contact chip 74.In addition, above-mentioned changer lever 70 is dashed forward in the underface of the flange part 75 between being located therein in the way of on same axle center
Provided with rotation axle portion 76.Furthermore, it is possible to above-mentioned rotation axle portion 76 is positioned to the above-mentioned positioning recess 21 of above-mentioned matrix 20, and
And rotatably supported via sealing ring 77 using the semicircular chimeric recess 12,16 of above-mentioned first, second lid 11,15 above-mentioned
Flange part 75.Therefore, when above-mentioned changer lever 70 is fulcrum with above-mentioned rotary shaft portion 76, the above-mentioned (figure of rotation contact chip 74
3) rotate, and the both ends of above-mentioned rotation contact chip 74 only contact with shared transfer terminal 30, or with above-mentioned shared transfer terminal
30 and first transfer terminal 31 contact.As a result, the circuit of above-mentioned printed base plate 50 can be switched, or, make electricity (not shown)
The direction of rotation of motivation is reversely rotated.
In addition, the click feel jog 22 of the above-mentioned steel ball 72 exerted a force by above-mentioned helical spring 71 and above-mentioned matrix 20 blocks
Close, therefore, by operating above-mentioned changer lever 70, can obtain click feel.
As assemble method, first, above-mentioned matrix 20 assemble above-mentioned shared transfer terminal 30, the first transfer terminal 31 and
Riveting is fixed with transfer fixed contact 32a the second transfer terminal 32.Then, in the support holes of above-mentioned shared transfer terminal 30
30a rotatably supports the transfer mobile contact piece 33 provided with transfer moving contact 33a via transfer moving contact spring 34.Cause
This, above-mentioned transfer moving contact 33a can with above-mentioned transfer fixed contact 32a separate and it is opposed.
Moreover, assembling the fixed contact terminals 35 for possessing switch use, energization fixed contact 35a, 35b in above-mentioned matrix 20
And moving contact terminal 36.
And then, it is fixed with movable contact for switch 37a's to the support holes 36a insert rivetings of above-mentioned moving contact terminal 36
Switch mobile contact piece 37.Above-mentioned switch is recessed via the positioning that bottom is positioned to above-mentioned matrix 20 with mobile contact piece 37
The moving contact spring 38 in portion 24, is rotatably supported in the support holes 36a of above-mentioned moving contact terminal 36.
Similarly, it is fixed with energization moving contact 39a in the support holes 36b insert rivetings of above-mentioned moving contact terminal 36
Energization mobile contact piece 39.Above-mentioned energization is with mobile contact piece 39 via the positioning that bottom is positioned to above-mentioned matrix 20
The moving contact spring 38b of recess 25 is rotatably supported in the support holes 36b of above-mentioned moving contact terminal 36.
Thus, above-mentioned switch use, be powered used with moving contact 37a, 39a with above-mentioned switch, be powered with fixed contact 35a,
35b is separate and opposed respectively.
Then, fixed sliding part 44,45 is respectively pressed into a pair of guide grooves 42a, 42b of plunger 40.On the other hand, will
The insertion corrugated of operating shaft 61 cylinder 62 of trigger 60 simultaneously utilizes the anti-avulsion of helical ring 63, and will be from above-mentioned corrugated cylinder 62
The leading section of prominent aforesaid operations axle 61 is slidably fastened and integrated with the connecting hole 40a located at above-mentioned plunger 40 from side.
And then, in the state of back-moving spring 43 to be inserted to above-mentioned through hole 41, slidable movement it is accommodated in above-mentioned matrix 20.And
And, it is fitted together in the opening portion of above-mentioned matrix 20 after assembling is provided with the printed base plate 50 of socket 51, by shared transfer terminal 30, the
One transfer terminal 31, the second transfer terminal 32 and fixed contact terminals 35, moving contact terminal 36 and the above-mentioned electricity of printed base plate 50
Connection.
On the other hand, changer lever 70 installs sealing ring 77 in its flange part 75, on the other hand, exists via fixture (not shown)
One end assembles helical spring 71 and steel ball 72, and assembles helical spring below one side, rotates contact chip 74
(Fig. 3).Moreover, the rotation axle portion 76 of above-mentioned changer lever 70 is rotatably positioned into the positioning recess 21 in above-mentioned matrix 20.
And then, first, second lid 11,15 is assembled from the both sides of above-mentioned matrix 20, makes the above-mentioned anti-avulsion of changer lever 70.Then, by sealing ring
77 opening edge is chimeric with the semicircle rib 13,17 of first, second lid 11,15.Finally, ultrasonic bonding or bonding agent are passed through
The engagement of above-mentioned first, second lid 11,15 is integrated, and thus, assembling operation is completed.
Then, the operating method of trigger switch is illustrated.
When changer lever 70 is in neutral position, pass through the central teat 60a (figures of the one end and trigger 60 of changer lever 70
2) abut, thus, trigger 60 will not be pulled, faulty operation can be prevented.
Moreover, by making above-mentioned changer lever 70 with above-mentioned flange part 75 for fulcrum rotate counterclockwise, rotating contact chip 74
Two ends are only contacted with shared transfer terminal 30.In addition, before above-mentioned trigger 60 is pulled, sliding part 44,45 is with maximum resistance
Value is contacted with the swept resistance body (not shown) of printed base plate 50.And then, transfer mobile contact piece 33 passes through transfer moving contact
The elastic force force of spring 34, but by position limitation in the stage portion 40b (Fig. 2) of plunger 40, therefore, transfer moving contact 33a from
Open transfer fixed contact 32a.
On the other hand, switch is exerted a force with mobile contact piece 37 by moving contact spring 38 (Fig. 6), but by by back-moving spring 43
The restriction site of operating portion 46 of the plunger 40 of force, movable contact for switch 37a can be contacted point with switch with fixed contact 35a
From and it is opposed.
Similarly, the energization being rotatably supported is exerted a force with mobile contact piece 39 by moving contact spring 38b (Fig. 5),
But by the restriction site of operating portion 47 in plunger 40, energization is with moving contact 39a with being powered with fixed contact 35b contact separations
It is opposed.
First, when operator pulls trigger 60, the plunger 40 engaged with its operating shaft 61 slides movement.Therefore, group
Sliding part 44,45 loaded on above-mentioned plunger 40 is slided on printed base plate 50, and as above-mentioned sliding part 44,45 is slided, resistance
Value diminishes, the electric current increase of flowing, and action lamp (not shown) etc. is lighted.
And then, when pulling trigger 60, the stage portion 40b (Fig. 2) of above-mentioned plunger 40 formation to transfer mobile contact
The position limitation of piece 33 is disappeared, and transfer mobile contact piece 33 is rotated by the elastic force of transfer moving contact spring 34.Therefore, in
Turn moving contact 33a to contact with transfer fixed contact 32a, and rated current is flowed through on above-mentioned printed base plate 50.Almost with it
Meanwhile, the operating portion 46 of above-mentioned plunger 40 is released from for above-mentioned switch with the position limitation of mobile contact piece 37.Therefore, switch
Rotated with mobile contact piece 37 by the elastic force of moving contact spring 38, movable contact for switch 37a is touched with switch with fixed
Point 35a contacts (reference picture 7, Fig. 8).
Electric arc is produced when movable contact for switch 37a proximity switches are with fixed contact 35a, riveting is fixed with a pair
Switch use, the horizontal end 35c of energization fixed contact 35a, 35b are not embedded in above-mentioned base by the above-mentioned cantilever support of matrix 20
Body 20.Therefore, it is difficult to produce micropowder from the resin for forming matrix 20 and is difficult to disperse into surrounding environmental gases, therefore, no
Only the insulaion resistance of inner space will not be reduced, and will not also adhere to the micropowder of resin in contact surface.As a result, switch
It is not likely to produce with fixed contact 35a proximity switches with electric arc during moving contact 37a, there is contact endurance extension.
And then, when pulling trigger 60, operating shaft 61 is pushed into the inboard of matrix 20, and the operating portion 47 of plunger 40 is carried out
Position limitation be released from.Therefore, energization mobile contact piece 39 is rotated by the elastic force of moving contact spring 38, is powered and is used
Moving contact 39a is contacted (Fig. 8) with being powered with fixed contact 35b, and swept resistance value turns near zero.As a result, upper
State sliding part 44,45 and flow through maximum current, from the output (not shown) of the microcomputer of the tool side for the change for receiving resistance value
Signal, the rotating speed of above-mentioned motor turns into maximum.
In addition, according to present embodiment, employ by moving contact spring 38a, 38b elastic force to switch with movably connecing
Contact 37, energization are exerted a force respectively with mobile contact piece 39, and ensure the so-called striking type mobile contact piece of contact.Cause
This, exist will not be produced at the time of contact deviation and switching characteristic does not have discrepant advantage.
Then, when operator, which relaxes, pulls the power of trigger 60, by the elastic force of back-moving spring 43, plunger 40 is pressed
Return, sliding part 44,45 is slided on printed base plate 50 to opposite direction.Moreover, the resistance moving contact bullet of operating portion 47 of plunger 40
Spring 38b elastic force makes energization mobile contact piece 39 be rotated to above-mentioned opposite direction, and therefore, energization is left with moving contact 39a
Fixed contact 35b is used in energization.Afterwards, the resistance moving contact spring of operating portion 46 38a of above-mentioned plunger 40 elastic force uses switch
Mobile contact piece 37 is rotated to above-mentioned opposite direction, and therefore, movable contact for switch 37a leaves switch fixed contact 35a.Enter
And, transfer mobile contact piece 33 is resisted the elastic force of transfer moving contact spring 34 using the stage portion 40b of plunger 40 and rotated, in
Turn moving contact 33a to leave after transfer fixed contact 32a, sliding part 44,45 returns back to initial position.
In addition, as shown in figure 9, from contact surface regions of the movable contact for switch 37a with switch fixed contact 35a
The state of 35d contacts, as shown in Figure 10, the situation that above-mentioned movable contact for switch 37a is left from switch with fixed contact 35a
Under, electric arc A1 produce in the surface region initially moved away from, i.e. above-mentioned switch fixed contact 35a contact surface region 35d and
Between above-mentioned movable contact for switch 37a contact surface region 37b.Afterwards, the magnetic force B of above-mentioned permanent magnet 28 uses switch
The electric arc A1 produced between fixed contact 35a and movable contact for switch 37a extends to desired direction.
That is, by the magnetic force B of above-mentioned permanent magnet 28, make movable contact for switch 37a contact surface region 37b and open
Pass is with the electric arc A1 produced between fixed contact 35a contact surface region 35d to non-planar contact surfaces region 37c and noncontact table
Face region 35e is moved.Therefore, even if non-planar contact surfaces region 35e, 37c is partly burnt out because of mobile electric arc A2, switch is used
Moving contact 37a contact surface region 37b and switch fixed contact 35a contact surface region 35d will not also be burnt out.Its
As a result, resistance will not increase, and be difficult heating, obtain the contact mechanism of contact endurance length.
In addition, when making above-mentioned changer lever 70 be rotated clockwise from neutral position centered on flange part 75, steel
Ball 72 crosses click feel jog 22, rotates the both ends of contact chip 74 and the shared transfer terminal 31 of transfer terminal 30 and first
Contact.Therefore, as described above, when pulling trigger 60, above-mentioned motor rotates to reverse direction.
The contact mechanism of the present invention is not limited to above-mentioned first embodiment or the second embodiment party shown in Figure 11
Formula.
That is, the switch of second embodiment is with the fixed contact 35a and movable contact for switch 37a opposite face side of being
Shape.Moreover, above-mentioned switch is provided with contact surface region 35d, the opposing party with fixed contact 35a in the unilateral edge of its opposite face
Face, non-planar contact surfaces region 35e is provided with the remaining unilateral edge of the opposite face.Moreover, in above-mentioned contact surface region
There is step between 35d and non-planar contact surfaces region 35e, also, connected by taper surface 35f.
Similarly, above-mentioned movable contact for switch 37a is provided with contact surface region in the unilateral edge of its opposite face
37b, on the other hand, non-planar contact surfaces region 37c is provided with the remaining unilateral edge of its opposite face.Moreover, being connect above-mentioned
Touch and there is step between surface region 37b and non-planar contact surfaces region 37c, also, connected by taper surface 37d.
According to present embodiment, because there is step between contact surface region 35d and non-planar contact surfaces region 35e,
And connected by taper surface 35f, so the electric arc with generation is easily moved, and the advantage of evanescence.
In addition, the present invention above-mentioned switch fixed contact 35a and movable contact for switch 37a taper surface can be by
The taper surface that plane is constituted, alternatively, it is also possible to being made up of the flexure plane of section convex form or the flexure plane of section concave shape
Taper surface.
In addition, in the above-described embodiment, the situation that mobile contact piece is rotated is illustrated, but may not be defined in
This or make the mobile contact piece that moving contact is moved in parallel along the relative direction with the surface crosswise of fixed contact.
Embodiment
(embodiment 1)
It regard the trigger switch of first embodiment as sample.Then, in circulation 42V, 130A electric current, permanent magnetic is utilized
The electric arc that the magnetic force of iron 28 is produced when making movable contact for switch 37a be contacted with switch with fixed contact 35a is to being difficult to encounter tree
In the case of the direction elongation of resin-formed product, the generation number of times of electric arc when measure contact is closed and arc duration.It will survey
Determine result to be represented with the rod line with shade in Figure 12 chart.
In addition, in embodiment 1, the direction that electric arc when contact is closed is difficult to encounter resin forming product refers to the contact produced
Electric arc during closing extends with mobile contact piece 37 and towards the rotating fulcrum of above-mentioned switch mobile contact piece 37 along switch
Direction.
(comparative example 1)
Except make generation contact close when electric arc to encounter resin forming product direction extend this point in addition to, it is other with
Generation number of times and the arc duration of electric arc when contact is closed are determined with the identical condition of above-described embodiment 1.Knot will be determined
Fruit is represented in Figure 12 chart with the rod line of white background.
In addition, in comparative example 1, the direction that the electric arc when contact of generation is closed encounters resin forming product refers to and switched
Axle center with mobile contact piece 37 is orthogonal, and the direction of the side wall elongation towards matrix 20.
As shown in Figure 12, arc duration 0.00 when being closed according to contact, time for not producing electric arc
Number is understood, compared with comparative example 1, and the contact of embodiment 1 is not likely to produce electric arc when closing.
In addition, in embodiment 1, the electric arc of the arc duration more than 0.40 when contact is closed is not produced, in contrast,
In comparative example 1, the electric arc of the arc duration 0.80 when contact is closed is produced.
It can be seen from result more than, compared with comparative example 1, the contact of embodiment 1 is not likely to produce contact deposition when closing.
(embodiment 2)
It regard the trigger switch of first embodiment as sample.Moreover, by by circulate 42V, 130A electric current, using forever
When the contact that the magnetic force of long magnet 28 is produced when making movable contact for switch 37a be contacted with switch with fixed contact 35a is closed
Electric arc is extended to the direction for being difficult to encounter resin forming product, and photograph taking is carried out to the contact surface after switch 100 times.Will switch
Figure 13, Figure 14 are shown in the shooting result of fixed contact, the shooting result of movable contact for switch is shown in Figure 15, Figure 16.
(comparative example 2)
Except make generation contact close when electric arc to encounter resin forming product direction extend this point in addition to, it is other with
The identical condition of above-described embodiment 2 is tested, and carries out photograph taking to contact surface afterwards.By the bat of switch fixed contact
Take the photograph result and be shown in Figure 17, Figure 18, the shooting result of movable contact for switch is shown in Figure 19, Figure 20.
, can if Figure 13~Figure 16 of embodiment 2 will be represented and represent that Figure 17~Figure 20 of comparative example 2 is compared
Know, compared with the contact surface of comparative example 2, the contact surface of embodiment 2 is attractive in appearance.
And then understand, compared with comparative example 2, the attachment of the carbon or glass fibre of embodiment 2 is few.
Therefore, it is known that, compared with comparative example 2, the dispersing of the micropowder such as resin of embodiment 2, adhere to few, also, in week
Enclose the micropowder such as resin in environmental gas swim caused by air insulation degradation it is few, therefore, be not likely to produce when contact is closed
Electric arc.
In addition, be expressed as in Figure 13~Figure 20 " spectrum 1 "~" spectrum 6 ", but above-mentioned statement is only to represent to carry out optics
The position of constituent analysis.
(embodiment 3)
It regard the trigger switch of first embodiment as sample.Moreover, circulation 42V, 130A electric current, are determined until producing
On-off times untill the deposition of contact.
(comparative example 3)
Using so that existing trigger switch premised on relative plane-plane contact as comparative example 3 sample, with embodiment 3
Identical condition determines the on-off times untill contact deposition is produced.
The on-off times of embodiment 3 and comparative example 3 are compared, the on-off times of embodiment 3 are the switch of comparative example 3
4 times or so of number of times.Because the on-off times of comparative example 3 is can meet the on-off times of safety requirements, according to implementation
Example 3, security is further improved.
Industrial applicability
The contact mechanism of the present invention is not limited to above-mentioned trigger switch, naturally it is also possible to suitable for other switches.
Symbol description
10 housings
11 first lids
15 second lids
20 matrixes
22 click feel jogs
24 location indentations
25 location indentations
28 permanent magnets
30 share transfer terminal
30a support holes
31 first transfer terminals
32 second transfer terminals
32a transfer fixed contacts
33 transfer mobile contact pieces
33a transfer moving contacts
34 transfer moving contact springs
35 fixed contact terminals
35a switch fixed contacts
35b energization fixed contacts
35c horizontal ends
35d contacts surface region
35e non-planar contact surfaces region
36 moving contact terminals
36a support holes
36b support holes
37 switches use mobile contact piece
37a movable contact for switch
37b contacts surface region
37c non-planar contact surfaces region
38a moving contact springs
38b moving contact springs
39, which are powered, uses mobile contact piece
39a energization moving contacts
40 plungers
40a connecting holes
40b stage portions
41 through holes
43 back-moving springs
44 sliding parts
45 sliding parts
46 operating portions
47 operating portions
50 printed base plates
51 sockets
60 triggers
61 operating shafts
70 changer levers
75 flange parts
76 rotate axle portion
77 sealing rings
A1, A2 electric arc
B magnetic force
Claims (7)
1. a kind of contact mechanism, consist of including：
Fixed contact；
Moving contact, it is relative with the fixed contact；
Permanent magnet, it makes the electric arc produced between the fixed contact and the moving contact be extended to defined direction,
Characterized in that,
Make to produce from fixed contact contact with movable contact contacts surface region using the magnetic force of the permanent magnet
Raw electric arc elongation, makes the electric arc to the fixed contact and the discontiguous non-planar contact surfaces region of the moving contact
It is mobile.
2. contact mechanism as claimed in claim 1, it is characterised in that
The moving contact is arranged on the mobile contact piece of rotation.
3. contact mechanism as claimed in claim 2, it is characterised in that
Made using the magnetic force of the permanent magnet from the fixed contact and the production of the contact surface region of the moving contact
The raw electric arc extends to the non-planar contact surfaces region of the rotating fulcrum side positioned at the mobile contact piece.
4. contact mechanism as claimed in claim 1, it is characterised in that
The moving contact is disposed along movably connecing with what the relative direction of the surface crosswise of the fixed contact was moved in parallel
On contact.
5. such as contact mechanism according to any one of claims 1 to 4, it is characterised in that
In the opposite face of either one of the opposite face of the fixed contact and the moving contact, it is formed with to close in contact
Make the contact spacing from the contact surface region to the non-planar contact surfaces region when closing from the inclined taper of mode broadened
Face.
6. one kind switch, it is characterised in that
Possesses contact mechanism according to any one of claims 1 to 5.
7. a kind of trigger switch, it is characterised in that
Possesses contact mechanism according to any one of claims 1 to 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015051160A JP6011664B2 (en) | 2015-03-13 | 2015-03-13 | Contact mechanism and switch using the same |
| JP2015-051160 | 2015-03-13 | ||
| PCT/JP2015/072924 WO2016147432A1 (en) | 2015-03-13 | 2015-08-13 | Contact mechanism and switch using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107210151A true CN107210151A (en) | 2017-09-26 |
| CN107210151B CN107210151B (en) | 2021-09-24 |
Family
ID=56918618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580076171.5A Active CN107210151B (en) | 2015-03-13 | 2015-08-13 | Contact mechanism and switch using same |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10204748B2 (en) |
| JP (1) | JP6011664B2 (en) |
| CN (1) | CN107210151B (en) |
| DE (1) | DE112015006306T5 (en) |
| WO (1) | WO2016147432A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6720901B2 (en) * | 2017-03-14 | 2020-07-08 | オムロン株式会社 | Trigger switch |
| KR200497970Y1 (en) * | 2021-12-24 | 2024-05-03 | 주식회사 제이케이시스템 | A contact structure of a switch, a contact block comprising the contact structure, and a switch comprising the contact block |
| KR200496040Y1 (en) * | 2022-02-15 | 2022-10-18 | 배범준 | Multi-contact structured push type micro switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162830A (en) * | 1996-02-08 | 1997-10-22 | 易通公司 | Electric current switching apparatus with arc extinguishing mechanism |
| JP2004273413A (en) * | 2003-01-09 | 2004-09-30 | Sumitomo Electric Ind Ltd | DC relay |
| CA2886423A1 (en) * | 2012-09-27 | 2014-04-03 | Eaton Electrical Ip Gmbh & Co. Kg | Direct current switch with a device for arc extinction independent of current direction |
| CN104078257A (en) * | 2013-03-27 | 2014-10-01 | 三菱电机株式会社 | Switchgear |
| CN104246952A (en) * | 2012-04-13 | 2014-12-24 | 富士电机株式会社 | Contact device and electromagnetic switch using same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4521971Y1 (en) * | 1967-02-24 | 1970-09-01 | ||
| JPS5810968Y2 (en) * | 1978-06-09 | 1983-03-01 | 三菱電機株式会社 | electrical contacts |
| JP4433817B2 (en) | 2004-02-10 | 2010-03-17 | パナソニック電工株式会社 | Power converter |
| JP4941048B2 (en) * | 2007-03-28 | 2012-05-30 | オムロン株式会社 | Trigger switch |
| JP5984087B2 (en) * | 2011-09-22 | 2016-09-06 | パナソニックＩｐマネジメント株式会社 | Electromagnetic relay |
| JP6277668B2 (en) * | 2013-02-14 | 2018-02-14 | オムロン株式会社 | Operation lever seal structure and power tool using the same |
| KR101775805B1 (en) | 2013-03-27 | 2017-09-06 | 미쓰비시덴키 가부시키가이샤 | Switchgear |
| JP6242579B2 (en) * | 2013-03-29 | 2017-12-06 | 株式会社マキタ | Trigger switch |
-
2015
- 2015-03-13 JP JP2015051160A patent/JP6011664B2/en active Active
- 2015-08-13 CN CN201580076171.5A patent/CN107210151B/en active Active
- 2015-08-13 DE DE112015006306.4T patent/DE112015006306T5/en active Pending
- 2015-08-13 WO PCT/JP2015/072924 patent/WO2016147432A1/en active Application Filing
-
2017
- 2017-08-22 US US15/682,608 patent/US10204748B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162830A (en) * | 1996-02-08 | 1997-10-22 | 易通公司 | Electric current switching apparatus with arc extinguishing mechanism |
| JP2004273413A (en) * | 2003-01-09 | 2004-09-30 | Sumitomo Electric Ind Ltd | DC relay |
| CN104246952A (en) * | 2012-04-13 | 2014-12-24 | 富士电机株式会社 | Contact device and electromagnetic switch using same |
| CA2886423A1 (en) * | 2012-09-27 | 2014-04-03 | Eaton Electrical Ip Gmbh & Co. Kg | Direct current switch with a device for arc extinction independent of current direction |
| CN104078257A (en) * | 2013-03-27 | 2014-10-01 | 三菱电机株式会社 | Switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107210151B (en) | 2021-09-24 |
| JP6011664B2 (en) | 2016-10-19 |
| US20170352499A1 (en) | 2017-12-07 |
| JP2016171031A (en) | 2016-09-23 |
| WO2016147432A1 (en) | 2016-09-22 |
| US10204748B2 (en) | 2019-02-12 |
| DE112015006306T5 (en) | 2017-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105378882B (en) | Contact mechanism and using its trigger switch, electric tool | |
| CN106067719B (en) | Power generation switch | |
| US9324523B2 (en) | Power generation device | |
| DE69926708D1 (en) | Electrical connector | |
| KR101517386B1 (en) | switch | |
| CN107210151A (en) | Contact mechanism and use its switch | |
| US20050258023A1 (en) | Vehicle interior illumination lamp | |
| US8704622B2 (en) | Switch arrangement | |
| AU2011276815B2 (en) | Torch with a battery cartridge | |
| US20170316900A1 (en) | Rotating contact apparatus for a switch | |
| EP3432332A1 (en) | Trigger switch and electrical tool using same | |
| DE602008002631D1 (en) | Electric switching device and fork assembly and spring arrangement therefor | |
| RU2012135465A (en) | VOLTAGE CIRCUIT BREAKER | |
| US20130140167A1 (en) | Trigger switch | |
| US9024215B2 (en) | Switch device | |
| CN103367015B (en) | The switch insert of switch is electrically installed | |
| CN102116784B (en) | Mechanical testing device | |
| CN107550275B (en) | Electric heating device base and electric kettle | |
| US3886340A (en) | Means for positioning a module in an electric motor control switch | |
| CN210120463U (en) | Brushless motor integrated control switch | |
| CN101393810A (en) | Independent pressing type control switch | |
| CN110246714B (en) | Interlocking device for operating handle and electricity of three-station mechanism | |
| CN210327290U (en) | Motor integrated control switch | |
| CN203415466U (en) | Indoor lamp slide switch structure | |
| RU53813U1 (en) | THROUGH SWITCH DEVICE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |